+1Been using Kooks for years and will never use anyone else. I know there are other good brands but my experience with Kooks has been exceptional. Some of the best craftsmanship I've seen, you won't be disappointed.
This is great news and the confirmation I was looking for. I had kooks on my old c6 and the fit and finish was 2nd to none. I too am running a flex tune and blend or run e85 quite a bit. Was just trying to make sure I won't have to relocate bung after install. How often do you use e85 or blend fuel? Sometime folks don't have issue for a couple thousand miles is why I ask. Are the extensions needed to reach? Thanks for your helpful information :cheers:I installed Kooks 1 7/8 and I did not have to relocate the O2 Bung and the e 85 lund flex tune had zero issues. You also don't have to remove the AC bolt as the Kooks clear it no problem, or should I say, it has plenty of room on my 15 GT.
I did usu the supplied O2 extension for the rear O2 sensor that was included and the quality if the extension was top notch and no problems with it.